Satire ménippée is a kind of writing that makes fun of important people in a sneaky way. It's kind of like a joke that only smart grown-ups can understand.
Imagine you have a big playground with some very important kids who think they're better than everyone else. Satire ménippée is like a game where you secretly make fun of those important kids by pretending to be nice to them. You might say things that sound nice on the surface, but hidden inside are really funny jokes that only smart people will catch.
Satire ménippée became really popular a long time ago in France and it was really funny. The smart adults used it to mock some of the big shot people who thought they were better than everyone else. Even though it was making fun of important people, it was still really clever and people liked it a lot.